If you don't have any health insurance, you can still get medical treatment after a serious car accident.  Some doctors are willing to work on something called a "lien" which means the doctor is willing to provide you with treatment so long as you promise to pay the doctor at the end of your case.
Usually, your attorney will be involved because most doctors aren't willing to make this arrangement unless you have a lawyer representing you.  You will have to sign something called a "lien form" and your lawyer will also sign.  Keep in mind, usually your doctor's bills will be paid out of the settlement proceeds from the accident.  However, it's important to be mindful of your expenses nevertheless because you don't want to dig a hole that's too deep to get out of.  For example, if you incur $10,000 in medical bills but the other party wasn't insured or only had the minimum required insurance policy, then you may be in trouble. 
Also, keep in mind that in most cases, the doctors expect to be paid regardless of the outcome of your case.  Therefore, if you lose the case or choose not to pursue it further for one reason or another, your doctor can technically force you to pay.  Some doctors routinely take their personal injury patients to small claims court to recover on bills. Don't be fooled that personal injury case only have an upside...that you can't lose.  A good lawyer should be able to guide you when it comes to these kinds of decisions.  If you need an experience personal injury lawyer in the Santa Clarita, CA area, please call my office for a free consultation.  In most cases, it's better to act sooner than later.

Here is a list of everything I need to help you with your personal injury case:

ALL Photographs depicting damage to your vehicle.  If you don't have any photos, please try your best to take some.  Photos should capture the damage from several angles.  Digital pictures are best and can be delivered to us by email and/or disc.  If your insurance company took photos, please ask them to get you those pictures as well.  If you are already our client, you can have your insurance company send the photos directly to our office.  It's your file, so you are entitled to the photos.
ALL photographs depicting damage to any other vehicles involved in the accident.
Your auto insurance information (name, address, policy numbers and claim numbers if available).  If you have the "Declarations Page" showing evidence of insurance covering the date of the accident, that is best.  This page outlines the important information including policy number, amount of coverage, etc.  If you don't have it, please call your insurance company and ask them to fax it to us.
Insurance information of all other parties.  Including insurance name, policy numbers if known, claim number if known, adjuster, address, etc.
Property damage estimates (if available).  Even if your car was a "total loss," it is often helpful to obtain a good property damage estimate that outlines all the parts of your car that were damaged.  Frame damage and other significant entries on your property damage estimate can affect your case.  
Any and ALL doctors and facilities with whom you have treated.  Please provide all contact information (names, phone numbers, addresses, etc).  Make sure that whenever you initially go to a doctor for treatment related to this accident, you MUST tell the doctor's office you are there because of the accident.  If you don't mention the accident, some insurance adjusters will doubt whether the treatment was accident-related.
Please let us know if you have ever been a Medicare recipient.  Also, please provide us with your health insurance information.
Police report (if available). If you have the police report number, we can order the police report for you.  If you already have the police report, please provide a copy.  If there was no police report prepared, please let us know that as well.
Were there any witnesses?  If yes, we will need their contact information.
Once you provide your lawyer with this information, he/she will be better able to represent you.  They need all the pieces of the puzzle if they are going to paint a picture for an insurance adjuster.

Robert Mansour is a Santa Clarita personal injury lawyer who can help you obtain compensation for your personal injury case.